Polypropylene liner socks are a wonder solution for cold feet. Put the on under your wool sock and have a good set of boots and you will be hard pressed (or sissy) to have cold feet. Also, spray deodorant (antiperspirant) helps a tremendous amount. I snowboard in temps sometimes below zero and my feet are never cold with this combo. Boarding boots are a little different then hunting boots but it is all the same when talking cold temps. I for one hate having cold feet and it will ruin a good day of hunting.